Calling HeidHoncho!7 Mar 2019 20:38
Hi,
You asked me a question over on the HUR board, but it relates to RBD, so I've come here to answer.
Your message was:
"Apologies all, but I would like to ask ADUK a question on an unreletated topic.
ADUK, what would happen to, let’s say for arguments sake, RBD’s share price, for example, if the Coulter well wasn’t going to be wireline logged ?
Nothing duplicitous you understand, just a random question, so as to edify myself, IMHO."
OK, just thought about it a bit., because it intrigues me a lot!
Firstly, your question is in various parts, so I'll answer the first a bit quickly. You ask me what would happen to the SP if the well wasn't wireline logged. And the answer is, I don't know! Because I'm not an SP predictor! AIM O&G shares seem to have a mind of their own, sometimes, working in reverse to news of 'success' !
But let's get down to the technical nitty-gritty, a place where I'm a lot happier, and can express myself with confidence.
We have 'Colter South', on the 'wrong' side of the fault, but RNS'd as a discovery, albeit just icing on the cake, and not the original target. Myself, I was a bit surprised to see that (so far as we know), wireline logs were not then subsequently run before going for sidetrack, but that the news was announced based purely on LWD (Logging While Drilling) data. Wireline would have given far more in-depth analysis, with MDT logs and sidewall cores...
But I can imagine good reasons why wireline wasn't run. The most important being that it's EXPENSIVE. And so is plugging back, and sidetracking. Let's face it, this operation isn't being financed by people with bottomless pockets, like Shell, for instance. And nice as 'Colter South' might be, the fact of having remained on the 'wrong side' has added to the bill.
I don't know the well 'architecture', so don't know from what depth the sidetrack will take place to hit 'Colter North'. But it'll probably have to be high, in order to run 'normal' wireline logs without too great a hole-angle. Otherwise such (absolutely neccessary) logs will have to be run using TLC. Which is time-consuming, tricky, and even more expensive.
(Btw, 'TLC' is one of those rather quaint oilfield acronyms coined by Schlumberger, standing for 'Tough Logging Conditions! Essentially it involves conveying wireline logging tools on the end of drillpipe if the hole angle is greater than about 50 degrees, where gravity won't exert enough 'pull' to ensure the instruments will get to where they're supposed to on wireline alone.)
One thing is sure. The target, 'Colter North', WILL be logged, whether it requires TLC or not. Because an unlogged hole is worthless, and just a hole in the ground. LWD can tell you a lot, but without sampling, you don't really know much.
And that having been said, there are now some LWD tools which can perform some of the 'sampling' tasks which earlier could only be done on wireline...
I guess this only goes halfway to answering your qu